Chapter 23 test bank
________ is (are) not important as a stimulus in the gastric phase of gastric secretion.
A) Peptides
B) Low acidity
C) Distension
D) Carbohydrates - ANS-D) Carbohydrates
\________ is locally regulated in the blood by the active form of vitamin D, which acts as a
cofactor.
A) Iron
B) Phosphorus
C) Sodium
D) Calcium - ANS-D) Calcium
\A baby is admitted to the hospital with a history of projectile vomiting after each feeding. On
examination, it is found that the sphincter controlling food passage from the stomach to the
duodenum is thickened and does not open readily. Because of the baby's loss of gastric juice,
his blood probably indicates ________.
A) ketosis
B) dysphagia
C) alkalosis
D) acidosis - ANS-C) alkalosis
\A fluid secreted into the small intestine during digestion that contains cholesterol, emulsification
agents, and phospholipids is ________.
A) intestinal juice
B) bile
C) pancreatic juice
D) gastric juice - ANS-B) bile
\Chemical digestion in the small intestine involves ________.
A) bile salts that help emulsify carbohydrates so that they can be easily digested by enzymatic
action
B) a significant amount of enzyme secretion by the intestinal mucosa
C) secretions from the spleen that contain all enzymes necessary for complete digestion
D) cholecystokinin (CCK), an intestinal hormone responsible for gallbladder contraction -
ANS-D) cholecystokinin (CCK), an intestinal hormone responsible for gallbladder contraction
\Chemical digestion reduces large complex molecules to simpler compounds by the process of
________.
A) catabolism
B) fermentation
C) mastication
D) anabolism - ANS-A) catabolism
\Chemical or mechanical process of breaking down foodstuffs to
substances that can be absorbed. - ANS-Digestion
, \Chief cells ________.
A) occur in the intestine
B) produce HCl
C) produce mucin
D) are found in the basal regions of the gastric glands - ANS-D) are found in the basal regions
of the gastric glands
\Choose the incorrect statement regarding bile.
A) Bile functions to emulsify fats.
B) Bile contains enzymes for digestion.
C) Bile functions to carry bilirubin formed from breakdown of worn-out RBCs.
D) Bile is both an excretory product and a digestive secretion. - ANS-B) Bile contains enzymes
for digestion.
\Chyme is created in the ________.
A) esophagus
B) mouth
C) stomach
D) small intestine - ANS-C) stomach
\Digestion of which of the following would be affected the most if the liver were severely
damaged?
A) proteins
B) lipids
C) carbohydrates
D) starches - ANS-B) lipids
\Enzymatic breakdown of any type of food molecule. - ANS-Hydrolysis
\From the esophagus to the anal canal, the walls of every organ of the alimentary canal are
made up of the same four basic layers. Arrange them in order from the lumen.
A) submucosa, serosa, muscularis externa, and mucosa
B) muscularis externa, serosa, mucosa, and submucosa
C) serosa, mucosa, submucosa, and muscularis externa
D) mucosa, submucosa, muscularis externa, and serosa - ANS-D) mucosa, submucosa,
muscularis externa, and serosa
\Gastrin is a digestive hormone that is responsible for the stimulation of acid secretions in the
stomach. These secretions are stimulated by the presence of ________.
A) protein and peptide fragments
B) simple carbohydrates and alcohols
C) starches and complex carbohydrates
D) fatty acids - ANS-A) protein and peptide fragments
\Gastrin, histamine, endorphins, serotonin, cholecystokinin, and somatostatin are hormones or
paracrines that are released directly into the lamina propria. Which of the following cell types
synthesize and secrete these products?
A) enteroendocrine cells
B) zymogenic cells
C) mucous neck cells
D) parietal cells - ANS-A) enteroendocrine cells
________ is (are) not important as a stimulus in the gastric phase of gastric secretion.
A) Peptides
B) Low acidity
C) Distension
D) Carbohydrates - ANS-D) Carbohydrates
\________ is locally regulated in the blood by the active form of vitamin D, which acts as a
cofactor.
A) Iron
B) Phosphorus
C) Sodium
D) Calcium - ANS-D) Calcium
\A baby is admitted to the hospital with a history of projectile vomiting after each feeding. On
examination, it is found that the sphincter controlling food passage from the stomach to the
duodenum is thickened and does not open readily. Because of the baby's loss of gastric juice,
his blood probably indicates ________.
A) ketosis
B) dysphagia
C) alkalosis
D) acidosis - ANS-C) alkalosis
\A fluid secreted into the small intestine during digestion that contains cholesterol, emulsification
agents, and phospholipids is ________.
A) intestinal juice
B) bile
C) pancreatic juice
D) gastric juice - ANS-B) bile
\Chemical digestion in the small intestine involves ________.
A) bile salts that help emulsify carbohydrates so that they can be easily digested by enzymatic
action
B) a significant amount of enzyme secretion by the intestinal mucosa
C) secretions from the spleen that contain all enzymes necessary for complete digestion
D) cholecystokinin (CCK), an intestinal hormone responsible for gallbladder contraction -
ANS-D) cholecystokinin (CCK), an intestinal hormone responsible for gallbladder contraction
\Chemical digestion reduces large complex molecules to simpler compounds by the process of
________.
A) catabolism
B) fermentation
C) mastication
D) anabolism - ANS-A) catabolism
\Chemical or mechanical process of breaking down foodstuffs to
substances that can be absorbed. - ANS-Digestion
, \Chief cells ________.
A) occur in the intestine
B) produce HCl
C) produce mucin
D) are found in the basal regions of the gastric glands - ANS-D) are found in the basal regions
of the gastric glands
\Choose the incorrect statement regarding bile.
A) Bile functions to emulsify fats.
B) Bile contains enzymes for digestion.
C) Bile functions to carry bilirubin formed from breakdown of worn-out RBCs.
D) Bile is both an excretory product and a digestive secretion. - ANS-B) Bile contains enzymes
for digestion.
\Chyme is created in the ________.
A) esophagus
B) mouth
C) stomach
D) small intestine - ANS-C) stomach
\Digestion of which of the following would be affected the most if the liver were severely
damaged?
A) proteins
B) lipids
C) carbohydrates
D) starches - ANS-B) lipids
\Enzymatic breakdown of any type of food molecule. - ANS-Hydrolysis
\From the esophagus to the anal canal, the walls of every organ of the alimentary canal are
made up of the same four basic layers. Arrange them in order from the lumen.
A) submucosa, serosa, muscularis externa, and mucosa
B) muscularis externa, serosa, mucosa, and submucosa
C) serosa, mucosa, submucosa, and muscularis externa
D) mucosa, submucosa, muscularis externa, and serosa - ANS-D) mucosa, submucosa,
muscularis externa, and serosa
\Gastrin is a digestive hormone that is responsible for the stimulation of acid secretions in the
stomach. These secretions are stimulated by the presence of ________.
A) protein and peptide fragments
B) simple carbohydrates and alcohols
C) starches and complex carbohydrates
D) fatty acids - ANS-A) protein and peptide fragments
\Gastrin, histamine, endorphins, serotonin, cholecystokinin, and somatostatin are hormones or
paracrines that are released directly into the lamina propria. Which of the following cell types
synthesize and secrete these products?
A) enteroendocrine cells
B) zymogenic cells
C) mucous neck cells
D) parietal cells - ANS-A) enteroendocrine cells
